13212234403 has 4 divisors (see below), whose sum is σ = 13989424680. Its totient is φ = 12435044128.

The previous prime is 13212234361. The next prime is 13212234419. The reversal of 13212234403 is 30443221231.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-13212234403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13212234493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388595113 + ... + 388595146.

It is an arithmetic number, because the mean of its divisors is an integer number (3497356170).

Almost surely, 2^13212234403 is an apocalyptic number.

13212234403 is a deficient number, since it is larger than the sum of its proper divisors (777190277).

13212234403 is an equidigital number, since it uses as much as digits as its factorization.

13212234403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777190276.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13212234403 its reverse (30443221231), we get a palindrome (43655455634).

The spelling of 13212234403 in words is "thirteen billion, two hundred twelve million, two hundred thirty-four thousand, four hundred three".